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(Model.) 2 sheets-sheen.

J. B. LEFEVRE 8v P. RENAXQ-v AU'IOMAII WATER GAGE FOR ALL KINDS 0F GENERATORS.

No. 802,008. 888811888 Ju'l 15, 1884.`

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2 Sheets-Sheet 2,.

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` J. B. LEFEVRE 82; P. RBNAUX AUTOMATIC WATER GAGE POR ALL KINDS 0F GBNERATORS.

Patented July 15, 18811:.

tion of our device.

NITED STATES PATENT OEEICE.

` JEAN BAPTISTE 'LEEvEE AND PEosPEE aENAUX, or rAEis, FRANCE.

AUTOMATIC WATER-GAGE FOR ALL-KINDS F GENERATORS.

I.L3EGIISICAIIOII' forming part of Letters Patent No. 302,008, dated July l5, 1884. Application filed August 3, 1883. (Model.) Patented in France June 9, 1882, No. 149,458; in England July l2, 1882, No. 3,312,

and in Belgium July 17, 1882, No. ,5ca

Be it known that we, JEAN BAPTISTE LE- FvEE and PEosPER RENAUX, citizens ofthe French Republic, residing at Paris, in the Department of the Seine and Republic of France, have invented certain new and useful Improvements in Automatic Water-Gages for All Kinds of Generators, (for which We have obtained a patent in France, No. 149,458, bearing date June 9, 1882; a patent in Belgium, No. 58,502, dated July 17, 1882, and provisional protection in Great Britain, No. 3,312, dated July 12, 1882,) of which the following is a speciiication.

ur invention relates to automatic Waterlevel indicators for steam-boilers; and it consists in so organizing and arranging the same that when constructed according to our method they may be placed at any distance from and in any desired position with respect to the boiler.

In the drawings, lFigure 1 is a vertical sec- Fig. 2 is an enlarged sec tion of one of the pistons in the indicator. Figs. l3 and 4 are vertical and horizontal sections, respectively, of the chamber H, as here- -inafter described; and Fig. 5 is an enlarged detail view of the superintendents indicator. A represents an ordinary boiler, uponvvhich is mounted the safety-valve B. Connected With this, or at any other suitable opening in the boiler, is an upright tube, (l, in which Works a piston-rod, D, actuated bya float, E. Said iioat is connected by levervor other suitable means to the piston-rod, and is adapted to raise and lower the same proportionally as the Water-level in the boiler rises and falls.

At a suitable point on the piston-rod D is attached the attendants indicator F, which 'may be of any Well-known construction. The

in a single line, and resting. upon the upper ends of these pistons are suitable set-screws,-

- Which support the arm' K.

At a suitable pointon the arm Kis pivoted a pitman-rod, L, which is in turn pivoted to a rack, M, operating the indicator-index N by means of suitable gear-wheels.

The tubes 1 2 3 4 5 6 are so arranged that the one communicating with theV lowest hole inchamber H shall be farthest removed from the pivoted end of the arm K, the next one place nearer, and so on. Bythis construction it will be seen that when pressure is admitted to the tube 1, the arm K will be raised a certain distance. When the ynext piston rises, the arm will be still further elevated and lifted from contact with piston No. 1, and so on throughout the series.

It is to be understood that around the rod D, Within the tube C, there is sufficient space -for the steam to pass up into the chamber H. Within this chamber Works the before-mentioned piston G, which is a disk provided with suitable packingv around its edge. It will thus be seen' that when the piston G rises and exposes a hole steam pressure is conveyed through the pipe connected therewith to the ofceAindicator. From the top of the vchamber H an exhaust-pipe, Q, conveys away the Waste steam issuing from ahy pipes that may be cut off by the descent of the piston G, thus removing pressure in such pipes and freeing them of their contents. also be carried with the cluster to the office- A suitable pipe may,

indicator for registering the steam-pressure openings toan indicating device, and means for controlling the iiow of steam from the said chamber through the series of pipes by the rise and fall of the Water in the boiler, substantially as set forth.

'2. In a water-level indicator, the chamber H, pierced with a number of holes, and pipes leading from such holes to an indicator such as described, in combination with the piston G, and suitable meansfor raising and lowering said piston proportionally as the water-level in the boiler rises andfalls.

3. In a Water-level indicator, the pistons J, pipes l 2 3 4 5 6, and suitable mechanism for admitting pressure to such pipes, in combination with the bar K, resting upon and operated by said pistons and connected with a suitable indicator.

4. In a Water-level indicator, the pistons J, pipes l 2 3 4 5 6, and suitable mechanism for admitting pressure to such pipes, in coml bination with the bar K, resting upon and operated by said pistons, pitman-rod L, rack M, and index N.

5. The chamber H, having a number of holes arranged around its sides, and the piston G, adapted to move ,vertically within said chamber, in combination with an exhaustpipe located above the highest side opening for conveying away Waste steam.

6. In a Water-level indicator, pistons arranged beneath a rod pivoted at one end, in combination with means for raising said pistons singly, commencing with the one adjacent to the free end of said rod. l

JEAN BAPTISTE LEFVRE. PROSPER RENAUX.

Witnesses:

VICTOR PoRoIN, J ULEs PoUssnT. 

